February 2019
Beginner to intermediate
544 pages
14h 36m
English
Content preview from Mastering Hadoop 3
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Introduction to HiveServer2
HiveServer2 enables clients to execute queries against Hive via JDBC, Thrift-like protocol. HiveServer2 provides support for multi-user concurrency and authentication. It provides better support for open API clients such as JDBC and ODBC. The new thrift RPC interface allows it to handle concurrent clients. It supports advanced popular security features such as Kerberos and LDAP. The metadata can be accessed via JDBC/ODBC clients.
HiveServer2 also provides container resources for the execution engine. It allocates one worker thread per TCP connection. The disadvantage of such a connection is that a thread will be allocated to a connection even if a connection is idle, which leads to a decrease in performance. We ...
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